Update 17_4.tpl

(Gold Club Active)MarketPlace -Trade Routes .The user get error when try to delete/expand non selected  route or non route in  list.(You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1).

TravianZ\trunk\Templates\Build\17_4_test.tpl
before  line 60 :
<a href="build.php?action=extendRoute&routeid=<?php echo $routeid; ?>">extend</a>*
add line:
<?php $routeid=$routeid == 0? $routeid=0:$routeid; ?>
Merge pull request #234 from hexcoded/patch-4

Update 17_4.tpl